Abu Al-Darda' said: I heard the Messenger of Allah (ﷺ) say: When a Muslim supplicates for his absent brother the angels say: Amin, and may you receive the like.
Narrated Ya'la ibn Umayyah:
The Prophet (ﷺ) said: Hoarding up food (to sell it at a high price) in the sacred territory is a deviation (from right to wrong).